Pressure lubricating apparatus



Nov. 7, 1933. w. M. J. JULLIG 1,933,809

PRESSURE LUBRICATING APPARATUS Filed March 10, 1931 pvveu I-T-Hys.

Fi .7 v M MJTJLIQQ & i9

g .O77a/v4fl Patented Nov. 7, 1933 I 1,933,809.

* IT D ST -r551 PATENTOFFLCE v 1,933,809 7 PRESSURE LUBRICATING APPARATUS Werner Max Josef Jiillig, Stockholm, Sweden, assignor to Sven Magnus Zackarias Titcklind,

Stockholm, Sweden ApplicationflMarch 10, 1931 Serial No. 521,566, and in Germany September 13, 1930 9 Claims. (Cl. 184-36) The present invention refers to a forced lubriother. The frame 1 forms with its upper part acation apparatus for oils, fats or similar lubricontainer, at the bottom of which are cut out cants, which may be utilized as well alone as also grooves 4, into which'the suction channels 2 open. specially as loW pressure part for a high pressure Above the grooves is placed an annular sieve 5 lubrication apparatus with as many lubricating which is connected to and is pressed down bya or means as desired which are arranged COIlC81'1tIlbottom ring ,6, the shape of which will later be. cally about the driving pump shaft. The invendescribed. tion brings about considerable improvements Wi"h the shaft 3 is releasably connected an. within that sphere of utilization in which the inclined spindle '7 which for the sake of greater same is intended to be used. Theforced lubricaclearness is shown separately on a smaller scale tion apparatus works fully reliable and is able to in Fig. 3. On this inclined spindle is rotatably overcome the frictional resistances in thesuction journalled a disk-like feedingmernber 3, that-is; conduit of the high pressure part and also in the to say a rolling disk with a lower. conical-surface sieve in front thereof, even if the fat is tough in and an upper spherical surface. The same is itself or has become tough by the influenceof shown in section and on a smaller scale in Fig.

cold. In this case the fat will be, worked and 4. On the frame 1 are provided pins 9 and the kneaded in such a manner that air bubbles which rolling feeding member 8 carries-corresponding possibly may be present in the lubricant, are pins 10 sunk d wn in a ov These p s practically entirely removed and thus the cylinconstitute in pairs a toothed gearing to impart 20 -ders of the high pressure part can no longer to. the feeding member 8 a rotary movement wholly or partly be filled with air. With respect about its Own i. to its mechanical constructionthe invention is T the inclined Spind1ef7 is Securely fastened. simply arranged and further is easily handled a a ihthe p a Sicklee inclined and works faultlessly even without carefulsuper- Sp 7 ses h s i al lower spindle 25; vision. Essentially for obtaining theabove stated p r i 14 a Central bore 11018 in Shaft 3 a d improvement is, according to the invention, the it arri along y a a .C pin 13 provisioniof a feeding member which has an infixed to the sp d e D iO 14 d is p V fl il clined position, performs a circular swinging f om being disp acedqup y a y t lock movement and has substantiallythe form of a The pp Spindle p o 6 O t e in: 3Q disks; This feeding member performs a rolling Clined Spindle 7 pp s 0116 more Wipers 3 movement upon the lubricant whereby the latter fixed to'the Sa and t the form f an s ed-out 0f thev c t i th h 11 evolvent, which fits intimately to theouter surcharge openings. Preferably-thisfeeding member face/ the e i member T enn i n consists of a disc with a lower conical surface and between the Spindle portion 16 0f he i clined- 35- an upper spherical surface; which disc isrotatmember and a Wiper 13 is effected means 1 able on an inclined spindle connected with a Screw bolt The m of Operation of the rotary dri shaft, 3 invention is the following. 7

1 For the illustration of the invention one form If the Container is filled with fat and h main of embodiment is shown on t drawing Fig 1 shaft 3 is subjected to rotation in a clockwise 40 is a vertical section through a fat lubricating directionrthe said shaft carries o e e c ed apparatus constituting thelow pressure part for Spindle 7 y metmg 0f the w l" p (Figa, high pressure lubrication apparatus, the feed- 3) in which rotation 3150 the sickle-like ing memberbeing shown in elevation. Fig. 2 is 12 partakesfeeding member 8 pe fo ms a plan view of the apparatus, while Figs. 3-8 on one handac l Swinging movemenh-thaii 45 show constructional details and diagramsfor the is 9 a all P0 1 in c atiits C cumelucidation of the invention. V ferenc-e, perform besides a circular movement The frame 1 of the apparatus contains at'its' simultaneously also" a vertical reciprocating lowerpart one or more piston pumps, not shown, movement, and on the other hand a movement or" of conventional construction, of which only the its own about the spindle portion 16 in counter 50 suction channels 2 are shown. The vertical drivclock-wise direction, and this on account ofthe ing shaft 3,' the upper part of which only has been pairs of pins 9, 1-0 acting as a gearing. In the shown, impartsto the pumps, for instanceby pitch circle of 7 these pin pairs'an exact rolling means of gear wheels or worm wheels, their workof the feeding member 8 takes place. I f 1 ing movement, and this in such a manner that A shoulder; 19 ofthe container and the upper 55 the separate pumps become active one atftefansurface otthe ring ,6 situated infthe container,

are conically inclining towards the vertical axis of the container. As further the sickle-like member 12 at its front edge 2() is sharpened like a knife edge and bent in the shape of an evolvent and further bent up, seen in the direction of rotation, the same cuts off portions of the fat from below and transports the same through the crescent-shaped opening 21 to the space underneath the feeding member 8 and above the sieve 5.

At the rotation and rolling of the feeding member and on account of the described movements of the parts the distance between the underneath side of the feeding member and the sieve 5 is gradually reduced to the size a shown in Fig. 1, and the fat is pressed through the sieve into the suction openings 2. This operation is considerably assisted by the fact that the feeding member 8 always on that side, at which displacing action or a super-pressure arises, grips under the bottom ring 6, so that the fat is prevented from escaping in an outward radial direction. Each wiper 18 scrapes the fat from the feeding member and assists in the complete emptying of the fat container.

In order to better elucidate the favorable action obtained by the gearing pins and the own motion of the feeding member caused by the same, the following is to be mentioned in refer-ring to Figs. 5-7.

If one places a lump of fat 24 on the sieve 22 (Fig. 5) and will press the same by means of an inclined plate 25 which is moved in the direction of the arrow 0:, through the sieve, this will without difiiculties be possible, provided the fat 'is soft. If however the fat is tough and at the same time possibly also cooled, an inconsiderable through-passage only of the fat through the sieve will take place, and the super-pressure obtained at the underneath side of the sieve 22 is low or practically equal to nought.- The operations are not either otherwise if one utilizes stirring wings or conveying screws. If one places a pressure plate 28 in a horizontal position upon a lump of fat 2'7 and'presses the plate-down in the direction of the arrow y (Fig. 6), a comparatively large fat quantity passes through the sieve and on the underneath side of the sieve arises a considerable super-pressure. It will further be found that with the arrangement according to Fig. 5, the

T fat quantity pressed-through the sieve will become the less the tougher the fat is, while with the arrangement according to Fig. 6, the transferred quantity becomes practically constant, when the fat becomes tougher, because at increasing consistence also the resistance of the fat against giving way in lateral direction increases. In this connection the eXtreme case which possibly may arise' with an arrangement 7 according to Fig.5, shall be touched, that is to say, when the lubricant is stiff. In this case a displacement of the lubricant through the sieve will no longer take place and the body 24 will only glide along the upper surface of the sieve, excepting that case, Where self-locking arises on account of too small an inclination of the plate 25 relatively to the sieve 22. i 3 Similar conditions as with the arrangement according to Fig. 6 prevail also then, if according to Fig. 7 a cylindrical surface 30 having the greatest possible radius of curvature, rolls at a distance a over the sieve 2'9 andthereby acts upon a lump of fat 31. The excess of fat which is not passed through the sieve, will in this case be pushed in front of the rolling cylinder. The size of the distance eis also in this case of importance for the displaced quantity, and this becomes the greater the less the distance a is. In practice a certain size for the distance a must not be surpassed, because space must be left between the rolling cylinder (the feeding member) and the sieve for hard bodies present in the lubricant, in order to avoid damage to the apparatus. The conditions with the arrangement according to Fig. '7 will still be more favorable, if simultaneously with the rolling movement of the cylinder in the direction of the arrow 1) also a smaller rotary motion about the geometrical axis of the cylinder takes place in the direction of the arrow u, inasmuch as in this case the body of fat .31 :has less tendency to let itself be pushed in front of the cylinder 30, and instead thereof the same will on account of the action of adhesion be drawn more powerfully into the wedgeshaped space between the cylinder and the sieve.

A combination of all the above stated courses of events will be found in the mode of operation of the conical feeding member 8 according to the invention. In the pitch circle of the pins 10 a pure rolling is performed, while the part A of' I therclling-disk situated above the groove 4 performs relatively to the sieve a movement in a direction opposite to the direction of rotation of the apparatus.

In mounting the feeding member, the same is placed from below into the bottom ring 6, the

vertical part 14 of the inclined member 'Tlis inserted in the bore hole of the driving shaft 3 and is turned thereafter so much, that the carrier pin 13 engages the bayonet aperture 33 (Fig. 8). The assembling and taking to pieces of the device thereby becomes extraordinarily simple. The sieve 5 is fixed to the bottom ring 6 from below and may thus together with the latter and with the feeding member 8 easily be taken out of the fat container of the 'apparatus by lifting said parts by means of the fixing screw bolt 15.

What I claim is:--

1. A forced lubrication apparatus comprising a container forthe lubricant provided with discharge openings at the bottom of said container, a rotary drive shaft, an inclined spindle connected with said drive shaft, a rotary double disk journalled on said'spindle and arranged to roll on the lubricant between said disk and said discharge openings, and cooperative engaging means on the container anddouble disk to force said double disk to rotate in a direction opposite to the r0- tation of said drive shaft.-

2. A forced lubrication apparatus comprising a container for the lubricant provided with discharge openings at the bottom thereof, a rotary drive shaft, an inclined spindle connected to said drive shaft, a rolling feeding member journalled on said spindle andhav ing a lower conical surface and an upper spherical surface, and a guide ring having a spherical surface in operative 'contact with the upper spherical surface on said feeding member, in such manner that an opening in the shape of a crescent is provided between the feeding member and the edge of the guide ring.

3. Aforced lubrication apparatus comprising a container for the 'lubricantprovided with discharge openings at the bottom thereof, a rotary drive shaft, an inclined spindlecarried by said drive shaft, a feeding member journalled on said spindle and having a lower conical-surface to roll on the lubricant between said disk arid said discharge openings and an upper spherical surface, and spherical surface means within said contain- 50 er and in operative contact with the upper spherical surface on said feeding member, in such manher that an opening in the shape of a crescent is provided between the feeding member and said spherical surface means.

4. A forced lubrication apparatus comprising a container for the lubricant provided with discharge openings at the bottom thereof, a rotary drive shaft including an inclined spindle, a rotary feeding member journalled on said spindle, an annular feeding member in operative contact with said rotary feeding member in such manner as to provide a crescent shaped feeding opening, and a knife means attached to said first mentioned feeding member and extending throughv said feeding opening.

5. A forced lubrication apparatus comprising a container for the lubricant having discharge openings at the bottom thereof, a rotary drive shaft including an inclined spindle, a rotary feeding member journalled on said spindle, an annular member in operative contact with the rotary member so as to form a crescent shaped feeding opening, a knife means attached to said feeding member and extending through said feeding opening, and wiper means attached to said spindle and in operative contact with said feeding member. a

6. In a lubricator of the type including a container for the lubricant having discharge openings at the bottom thereof, a rotary drive shaft and a feeding member, said drive shaft includ ing an inclined spindle to rotatably support said feeding member, teeth means at the bottom of said container, teeth means on the lower surface different circumference from that of the teeth means at the bottom of said container.

8. In a lubricator of the. type including a container for the lubricant, a rotary drive shaft and a feeding member, an inclined spindle to rotatably support said feeding member, a bayonet locking means to connect said drive shaft with said spindle, and means to force said feeding member to perform'a rotary movement about its own axis. 1

9. In a lubricator of the type including a container for the lubricant having discharge openings at the bottom thereof, a rotary drive shaft and a feeding member, an inclined spindle connected with said drive shaft and adapted to rotatably support said feeding member, sieve means on the top of said discharge openings, said feeding member provided with a lower conical surface, and said conical surface being adapted to roll on the lubricant at a minor distance above said sieve means.

WERNER MAX JOSEF JULLIG. 

